PaaS is based on distributed cloud computing services, IaaS is infrastructure services, and SaaS is software as a service.

Generally speaking, PaaS is in the middle layer, which is developing rapidly and is the most common. The service architecture like POLYV is mainly based on software cloud computing technology, which is a self-developed video encryption technology and customized player. Integrate multi-regional and multi-IDC resources into the video platform, and the platform distribution CDN supports the whole cloud architecture service. In this way, users can freely use resources during peak hours without access restrictions. Most importantly, in the whole architecture service, the data is safe, because the video platform has set up various mechanisms to protect the data from being damaged or lost.